Combined call-bell and speaking-tube.



No. 868,677. PATENTBD 001?. 22, 1907.

a. w. LYON.

COMBINED CALL BELL AND SPEAKING TUBE.

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ROBERT ASHBURNE LYON, Ol NEW YORK, N. Y.

COMBINED CALL-BELL AND SPEAKING-TUBE.

Specification of Letters Patent.

Patented Oct. 22, 1907.

Application filed April 30,1906. Serial No- 314,527.

To all about it may concern:

Be it known that I, ROBERT WAsiiBnRNE LYON, a citizen of the United States, residing at New York, in the county oi New York and State of New York, have invented certain new and useful Improvements in a (.ornbincd Call-Bell and Speaking-Tube; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art of which it appertains to make and use the same.

This invention relates to improvements in speaking tubes.

The obj cct of the invention is to provide a combined speaking tube and call bell adapted to be placed in the door or wall of a room, and which when operated will sound said bell to attract the attention of the occupants of the room with whom a conversation may be carried on without opening the door or disturbing the occupants of other rooms. V

With the above and other objects in view, the invention consists of certain novel features of construction, combination and arrangement of parts, as will be hereinafter d escribcd and claimed.

In the accompanying drawingsz-Figure 1 is a sec tional view of a door, showing the arrangement of the device therein, the latter being shown in full lines; Fig. 2 is a similar view, showing the speaking tubes in longitudinal section; and Fig. 3 is a transverse sectional view through one end of the tube, showing the arrangement and manner of operating the bell clapper.

Referring more particularly to the drawings, 1 denotes aspeaking tube which is adapted to be inserted through a door or wall, as shown. speaking tube 1 is arranged an integrally formed mouth piece 2, between which and the adjacent side of the door is arranged a plate 3. The end of the speaking tube to which the mouth piece 2 is attached is covered by a perforated plate 4, which will prevent the entrance of foreign matter into the tube. The opposite end of the speaking tube projectsthrough a retaining plate 5 secured on the opposite side of the door or wall. The projecting end of the tube adjacent to the plate 5 is provided with an annular groove 6, in which is arranged a spring metal retaining ring 7, by means of which the tube is prevented from being withdrawn from the door or wall, as will be understood,

Secured to the plate 5 and projecting outwardly and over the end of the speaking tube is a bracket 8, on which is adapted to be secured a bell 9, said bell being provided at its center with air opening 10, in which is arranged a spider frame 12 which engages the bracket 8. Arranged on the outer side of the bell is a mouth piece 13, the inn er plate or wall of which is closed by an integral, perforated plate 14, the perforations of which communicate with the opening 10 in the bell and through l r i I l l I l l l I I l l l On one end of the the same with the speaking tube. The mouth piece and the bell 9 are secured to the bracket by a screw 15.

astened to the bracket 8 is a bell clapper supporting rod 16, on the outer end of which is arranged a bell clapper 17. The rod 16 is formed of spring metal, and is bent to form a laterally projecting trip ing 18, which engages the periphery of the adjacent end of the speaking tube and is adapted to be successively engaged and tripped by an annular series of apertures 19 formed in said end of the speaking tribe in the same vertical plane as the lug 18, whereby when said speakingtube is turned or oscillated in the door or wall, the spring clapper rod 16 will be vibrated, thus causing the clapper 17 to be brought into engagement with the bell 9, thereby sounding said bell and attracting the attention of the occupants of the room with whom conversation may be carricd on through the tube.

By providing a combined speaking tube and bell as herein shown and described, the occupants of a room may be communicated with without disturbing the occupants of other rooms. By turning the tube 1 more or less rapidly, the bell will be sounded more or less rapidly and loudly, the mouth piece 2 being provided with a milled edge to facilitate the gripping of the same and the turning of the tube 1. A device of this character is particularly adapted for use in connection with rooms in a hotel, steam-ship or apartment houses, whereby the occupants of said rooms may be privately communicated with and while the same is here shown as being applied to a door, it is obvious that by providing a longer tube the same may be set into a wall or partition of any description. I

From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood without requiring a more extended explanation.

Various changes in the form, proportion and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention, as defined by the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters'Patent, is:

1. A combined call bell and speaking tube comprising a revolubly mounted speaking tube having on one end an integral mouth piecev a bell arranged over the opposite end of said speaking tube, said bell having formed therein an opening, a mouth piece arranged over said opening. and means actuated by the turning of said speaking tube to ring said hell.

2. A combined call bell and speaking tube comprising a revolubly mounted speaking tube, a mouth piece arranged on one end of said tube, a perforated plate arranged in said mouth piece, a bell arranged over the opposite end of said mouth piece. said bell having formed therein an opening, a mouth piece arranged over said opening, said mouth piece having an apei'tiired inner wall or plate, a bell clapper supporting arm, and means whereby said arm is vibrated to cause the clapper thereon to strike and ring said hell, substantialy as described.

3. A combined call bell and speaking tube comprising a revolubly mounted speaking tube, a mouth piece arranged on one end of said tube, said mouth piece having a milled edge, a supporting bracket arranged adjacent to the opposite end of said tube, a bell secured to said bracket, said bell having an opening, a mouth piece arranged over the opening in said bell, a spring, bell clapper arm secured to .said bracket, a lug formed on said arm and projecting into the path of movement of a series of trip apertures formed in the adjacent end of said speaking tube, whereby when the latter is turned the clapper arm will be vibrated to engage the clapper carried thereby with said bell, substantially as described.

4. A combined call bell and speaking tube comprising a speaking tube adapted to be revolubly mounted in a door or wall, a mouth piece and a guard plate arranged on one end of said tube, a retaining plate arranged on the opposite end of said tube and secured to the adjacent side of said door or wall, an annular groove formed in said end of the speaking tube, a spring retaining ring adapted to be engaged with said groove to revolubly hold said speaking tube in place, a supporting bracket secured to said retaining plate, an apertured bell secured on said bracket, a mouth piece arranged over the aperture in said bell, a spring clapper supportingrod secured to said bracket, a trip lug formed in said rod and projecting into the path of movement of an annular series of trip holes formed in the adjacent end of the speaking tube, and a clapper arranged on the outer end of said rod to engage said bell when the rod is vibrated by the turning of the tube, substantially as described.

In testimony whereof I have hereunto presence of'two subscribing witnesses. ROBERT VASHBURNE LYON.

set my hand in Witnesses IIENRY RICE, JOHN A. Bum. 

